Abstract
A new channeled-substrate narrow stripe laser with double current confinement and large optical cavity has been developed. This laser incorporates symmetrical waveguiding layers to form the large cavity and additional reverse biased p-n junction to confine the current. Light output up to 60 mW with stable single longitudinal and spatial modes is obtained in cw operation at room temperature. Threshold current as low as 15 mA and differential quantum efficiency as high as 70% are achieved. Furthermore, high quality beam with far-field angle of 32°×10° (full width at half-maximum) is maintained throughout the whole power range.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
